Final answer:
A primary spermatocyte matures into four haploid spermatids, each containing 23 chromosomes. This occurs through two stages of meiosis during spermatogenesis.
Step-by-step explanation:
A primary spermatocyte matures into four spermatids having haploid chromosomes.
During the process of spermatogenesis, spermatogonia undergo mitosis to produce two diploid cells. One cell continues as a spermatogonium, while the other becomes a primary spermatocyte.
This primary spermatocyte goes through meiosis I to create two secondary spermatocytes, each with half the number of chromosomes (haploid). These secondary spermatocytes then undergo a second division during meiosis II, resulting in four haploid spermatids. Subsequently, these spermatids develop into mature sperm cells.
Thus, from one primary spermatocyte, through the stages of meiosis I and II, a total of four haploid spermatids are produced, and each spermatid contains 23 chromosomes. These spermatids eventually mature into spermatozoa, capable of fertilizing an egg.